1 code implementation • 5 Apr 2023 • Pu Li, Marie Roch, Holger Klinck, Erica Fleishman, Douglas Gillespie, Eva-Marie Nosal, Yu Shiu, Xiaobai Liu
To overcome this limitation, we present a framework of stage-wise generative adversarial networks (GANs), which compile new whistle data suitable for deep model training via three stages: generation of background noise in the spectrogram, generation of whistle contours, and generation of whistle signals.
1 code implementation • 5 Apr 2023 • Pu Li, Xiaobai Liu
To address this concern, we develop a sequential estimator that directly processes a sequence of video frames and estimates their pairwise planar homographic transformations in batches.
no code implementations • 15 Oct 2020 • Hongjun Wang, Guanbin Li, Xiaobai Liu, Liang Lin
Although deep convolutional neural networks (CNNs) have demonstrated remarkable performance on multiple computer vision tasks, researches on adversarial learning have shown that deep models are vulnerable to adversarial examples, which are crafted by adding visually imperceptible perturbations to the input images.
no code implementations • IEEE Transactions on Pattern Analysis and Machine Intelligence 2019 • Yuanlu Xu, Wenguan Wang, Xiaobai Liu, Jianwen Xie, Song-Chun Zhu
In this paper, we propose a pose grammar to tackle the problem of 3D human pose estimation from a monocular RGB image.
Ranked #15 on 3D Human Pose Estimation on HumanEva-I
1 code implementation • 25 Apr 2019 • Yudong Han, Lei Zhu, Zhiyong Cheng, Jingjing Li, Xiaobai Liu
2) the relaxing process of cluster labels may cause significant information loss.
no code implementations • 25 Aug 2018 • Tianshui Chen, Riquan Chen, Lin Nie, Xiaonan Luo, Xiaobai Liu, Liang Lin
This paper focuses on semantic task planning, i. e., predicting a sequence of actions toward accomplishing a specific task under a certain scene, which is a new problem in computer vision research.
no code implementations • 17 Oct 2017 • Hao-Shu Fang, Yuanlu Xu, Wenguan Wang, Xiaobai Liu, Song-Chun Zhu
In this paper, we propose a pose grammar to tackle the problem of 3D human pose estimation.
Ranked #1 on 3D Absolute Human Pose Estimation on Human3.6M (Average MPJPE (mm) metric)
no code implementations • CVPR 2018 • Yuanlu Xu, Lei Qin, Xiaobai Liu, Jianwen Xie, Song-Chun Zhu
We introduce a Causal And-Or Graph (C-AOG) to represent the causal-effect relations between an object's visibility fluent and its activities, and develop a probabilistic graph model to jointly reason the visibility fluent change (e. g., from visible to invisible) and track humans in videos.
no code implementations • 13 Jul 2017 • Lei Zhu, Zi Huang, Xiaobai Liu, Xiangnan He, Jingkuan Song, Xiaofang Zhou
Finally, compact binary codes are learned on intermediate representation within a tailored discrete binary embedding model which preserves visual relations of images measured with canonical views and removes the involved noises.
no code implementations • CVPR 2016 • Yuanlu Xu, Xiaobai Liu, Yang Liu, Song-Chun Zhu
This paper presents a hierarchical composition approach for multi-view object tracking.
no code implementations • 7 Apr 2016 • Zhanglin Peng, Ruimao Zhang, Xiaodan Liang, Xiaobai Liu, Liang Lin
This paper addresses the problem of geometric scene parsing, i. e. simultaneously labeling geometric surfaces (e. g. sky, ground and vertical plane) and determining the interaction relations (e. g. layering, supporting, siding and affinity) between main regions.
no code implementations • 1 Feb 2015 • Yuanlu Xu, Liang Lin, Wei-Shi Zheng, Xiaobai Liu
This paper aims at a newly raising task in visual surveillance: re-identifying people at a distance by matching body information, given several reference examples.
no code implementations • CVPR 2014 • Xianjie Chen, Roozbeh Mottaghi, Xiaobai Liu, Sanja Fidler, Raquel Urtasun, Alan Yuille
Our model automatically decouples the holistic object or body parts from the model when they are hard to detect.
no code implementations • CVPR 2014 • Roozbeh Mottaghi, Xianjie Chen, Xiaobai Liu, Nam-Gyu Cho, Seong-Whan Lee, Sanja Fidler, Raquel Urtasun, Alan Yuille
In this paper we study the role of context in existing state-of-the-art detection and segmentation approaches.
no code implementations • CVPR 2014 • Xiaobai Liu, Yibiao Zhao, Song-Chun Zhu
The grammar takes superpixels as its terminal nodes and use five production rules to generate the scene into a hierarchical parse graph.
no code implementations • CVPR 2013 • Xiaobai Liu, Liang Lin, Alan L. Yuille
In this work, we present an efficient multi-scale low-rank representation for image segmentation.